38309768 has 24 divisors (see below), whose sum is σ = 83559150. Its totient is φ = 16418304.

The previous prime is 38309701. The next prime is 38309773. The reversal of 38309768 is 86790383.

It can be written as a sum of positive squares in only one way, i.e., 37429924 + 879844 = 6118^2 + 938^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48473 + ... + 49256.

Almost surely, 2^38309768 is an apocalyptic number.

It is an amenable number.

38309768 is an abundant number, since it is smaller than the sum of its proper divisors (45249382).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38309768 is a wasteful number, since it uses less digits than its factorization.

38309768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97749 (or 97738 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 38309768 is about 6189.4885087542. The cubic root of 38309768 is about 337.1086067311.

The spelling of 38309768 in words is "thirty-eight million, three hundred nine thousand, seven hundred sixty-eight".